mirror of https://gitlab.com/QEF/q-e.git
208 lines
4.9 KiB
Modula-2
208 lines
4.9 KiB
Modula-2
input_description -distribution {Quantum Espresso} -package CP -program cppp.x {
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toc {}
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intro {
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=============================================================================
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CP Post-Processing code (cppp.x)
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=============================================================================
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The cppp.x code is an utility that can be used to extract data from the CP
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restart and CP trajectory files.
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INPUT:
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=====
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the program read the input parameters from the standard input or from
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any other file specified through the usual "-input" command line flag.
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The input parameters, in the input file, should be specified in the inputpp
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namelist follow:
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&INPUTPP
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...
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cppp_input_parameter
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...
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/
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}
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namelist INPUTPP {
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var prefix -type CHARACTER {
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default { 'cp' }
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info {
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basename prepended to cp.x output filenames: cp.evp, cp.pos ....
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}
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}
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var fileout -type CHARACTER {
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default { 'out' }
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info {
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basename of the cppp.x output files
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}
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}
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var output -type CHARACTER {
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default { 'xsf' }
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info {
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a string describing the output format to be performed,
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allowed values: 'xsf', 'grd'
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xsf xcrysden format
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grd GRD gaussian 3D grid format
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}
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}
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var outdir -type CHARACTER {
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default { './' }
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info {
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directory containing the CP trajectory files (.evp .pos .cel ...)
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and restart files ( .save ) to be processed
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}
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}
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var lcharge -type LOGICAL {
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default { .false. }
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info {
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This logical flag control the processing of charge density.
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.TRUE. generate output file containing charge density.
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The file format is controlled by the "output" parameter
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.FALSE. do not generate charge density file
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}
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}
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var lforces -type LOGICAL {
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default { .false. }
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info {
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This logical flag control the processing of forces.
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.TRUE. extract forces from trajectory files and write
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them to xcrysden file
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.FALSE. do not proces forces
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}
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}
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var ldynamics -type LOGICAL {
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default { .false. }
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info {
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This logical flag control the processing of atoms trajeactory.
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.TRUE. process CP trajectory files and generata a trajectory
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file for xcrysden (.axsf)
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.FALSE. do not proces trajectory
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}
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}
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var lpdb -type LOGICAL {
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default { .false. }
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info {
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This logical flag control the generation of a pdb file.
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.TRUE. generate a pdb file containing positon and cell of
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the simulated system
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.FALSE. do not generate pdb file
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}
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}
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var lrotation -type LOGICAL {
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default { .false. }
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info {
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This logical flag control the rotation of the cell
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.TRUE. rotate the system cell in space in order to have
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the a lattice parameter laying on the x axis,
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the b lattice parameter laying on the xy plane
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.FALSE. do not rotate cell
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}
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}
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vargroup -type INTEGER {
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var ns1
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var ns2
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var ns3
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default { 0 }
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info {
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Dimensions of the charge density 3D grid.
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If ns1, ns2, ns3 are 0 or not specified, the dimensions
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of the grid in the CP run are assumed; otherwise chargedensity
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is re-sampled on the GRID specified with ns1,ns2,ns3
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}
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}
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vargroup -type INTEGER {
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var np1
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var np2
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var np3
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default { 1 }
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info {
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Number of replicas of atomic positions along cell parameters.
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If ns1, ns2, ns3 are 1 or not specified, cppp.x do not
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replicate atomi positions in space.
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If ns1 ns2 ns3 are > 1 cppp.x replicate the positions along
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a ns1 times, along b ns2 times and along c ns3 times.
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the atomic positions used in the simunation.
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}
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}
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var nframes -type INTEGER {
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default { 1 }
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info {
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number of MD step to be read to buind the trajectory
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}
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}
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var ndr -type INTEGER {
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default { 51 }
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info {
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CP restart file number to post process
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}
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}
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dimension atomic_number -start 1 -end ntyp -type INTEGER {
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default { 1 }
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info {
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Specify the atomic number of the species in CP trajectory and
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restart file.
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atomic_number(1) specify the atomic number of the first specie
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atomic_number(2) specify the atomic number of the second specie
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....
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}
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}
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var charge_density -type CHARACTER {
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default { 'full' }
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info {
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specify the component of the charge density to plot,
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allowed values:
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'full' print the full electronic charge
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'spin' print the spin polarization (for LSD calculations)
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}
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}
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var state -type CHARACTER {
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default { ' ' }
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info {
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specify the Kohn-Sham state to plot, example: 'KS_1'
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}
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}
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var lbinary -type LOGICAL {
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default { .TRUE. }
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info {
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specify the file format of the wave function files
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to be read and plotted
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}
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}
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}
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}
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